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Design And Application Of Facile Routes To N-Heterocycle Functionalized Poly(Arylene Ether)S, Abraham K. Kemboi
Design And Application Of Facile Routes To N-Heterocycle Functionalized Poly(Arylene Ether)S, Abraham K. Kemboi
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A series of 3,5-difluorinated systems, which are activated towards nucleophilic aromatic substitution (NAS) by the strongly electron withdrawing benzoxazole or benzothiazole groups, located meta to the fluorines were prepared and fully characterized. The monomers also carry various N-heterocyclic species on the non-fluorinated ring. The corresponding poly(arylene ether)s, some of which were copolymers with triphenylphosphine oxide-based monomers, were prepared via standard NAS polycondensation reactions. Incorporation of the monomers containing N-heterocycle units was determined by NMR spectroscopy. Characterization of the thermal properties was done using thermogravimetric analysis (TGA) and differential scanning (DSC). Most of the polymers displayed good film forming properties when …